First sign was my one (right) nipple was larger (just the nipple not areola. Then after a couple of days the areola got bigger, left boob still normal. Then yesterday the colour of my right nipple got darker (dark pink/purple). Left boob is still normal.

I'm 3 days from period with dull cramps, extreme fatigue, very very sore boobs, big Montgomery glands. That's about it. Oh and a patchy rash.

Did a pregnancy test yesterday and it was a BFN.

Any ideas?

TIA!